Millennials, also known as Peter-Pan Generation, from early  '80s to the '90s, early 2000s, happened to be superb movers, holding the business power, and here are the five in top class.

Mark Zuckerberg

Mark Elliot Zuckerberg (born May 14, 1984) is an American computer programmer and Internet entrepreneur. He is the chairman, chief executive officer, and co-founder of Facebook.His net worth is estimated to be US $53.6 billion as of 2017, ranking him the 5th richest person in the world.

Evan Spiegel and Bobby Murphy

The founders of Snapchat, the photo app that lets users upload images and decide when those images will vanish from view.
Snapchat has become another way for people to put up benign and racy pictures to test out public reaction, knowing they can pull them in a short period of time.
Spiegel and Murphy’s app dominates the young teenage market, in which looking good is the currency of becoming popular and well-liked. Your eyes may pop when you realize that these two entrepreneurs turned down $3 billion from Facebook founder Mark Zuckerberg to buy their company.
Source 

Eric Butler

Eric Butler, 26 years, is a king of protection. Butler is a security expert who commands high fees for creating network security protocols for major corporations.
He is also the inventor of Firesheep, a computer intrusion program that lets companies see how vulnerable their systems are to hackers.
Butler’s relentless pursuit of a security protection always makes him in-demand, and his latest efforts are related to showing mobile phone manufacturers how easy it is for blackhat hackers to compromise an ordinary SIM card and obtain sensitive information on mobile phones.

 Tracy Chou

 Chou, 26, is one of the brightest and most sought-after software engineers in the world.
After intern stints at Facebook and Google, she now works at Pinterest, despite heavy pressure from the Facebook-financed site Quora to become one of its lead software engineers. Chou’s a big brain too, and holds two degrees from Stanford.

 John and Patrick Collison

Two brothers who grew up in Ireland, John Collison, 23 and Patrick Collison, 25, are the creators of Stripe, a Paypal like service that lets users make online payments in nearly a dozen countries.
The Collisons raised funding from a diverse group of companies to start Stripe, and the company is now valued at nearly $2 billion, which is pretty good, considering the initial startup money they raised was a ‘mere’ $50 million.
 Source